Smart Structures and Systems

  • 제22권1호
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  • Pages.1-11
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  • 2018
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Electrical impedance-based crack detection of SFRC under varying environmental conditions

  • Kang, Man-Sung (Department of Architectural Engineering, Sejong University) ;
  • An, Yun-Kyu (Department of Architectural Engineering, Sejong University) ;
  • Kim, Dong-Joo (Department of Civil and Environmental Engineering, Sejong University)
  • 투고 : 2018.03.19
  • 심사 : 2018.05.24
  • 발행 : 2018.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study presents early crack detection of steel fiber-reinforced concrete (SFRC) under varying temperature and humidity conditions using an instantaneous electrical impedance acquisition system. SFRC has the self-sensing capability of electrical impedance without sensor installation thanks to the conductivity of embedded steel fibers, making it possible to effectively monitor cracks initiated in SFRC. However, the electrical impedance is often sensitively changed by environmental effects such as temperature and humidity variations. Thus, the extraction of only crack-induced feature from the measured impedance responses is a crucial issue for the purpose of structural health monitoring. In this study, the instantaneous electrical impedance acquisition system incorporated with SFRC is developed. Then, temperature, humidity and crack initiation effects on the impedance responses are experimentally investigated. Based on the impedance signal pattern observation, it is turned out that the temperature effect is more predominant than the crack initiation and humidity effects. Various crack steps are generated through bending tests, and the corresponding impedance damage indices are extracted by compensating the dominant temperature effect. The test results reveal that propagated cracks as well as early cracks are successfully detected under temperature and humidity variations.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Land, Infrastructure and Transport

참고문헌

  1. Aggelis, D.G., Kordatos, E.Z., Soulioti, D.V. and Matikas, T.E. (2010), "Combined use of thermography and ultrasound for the characterization of subsurface cracks in concrete", Constr. Build. Mater., 24(10), 1888-1897. https://doi.org/10.1016/j.conbuildmat.2010.04.014
  2. An, Y.K., Kim, J.M. and Sohn, H. (2014), "Laser lock-in thermography for detection of surface-breaking fatigue cracks on uncoated steel structures", NDT&E Int., 65, 54-63. https://doi.org/10.1016/j.ndteint.2014.03.004
  3. An, Y.K. and Sohn, H. (2012), "Integrated impedance and guided wave based damage detection", Mech. Syst. Signal Pr., 28, 50-62. https://doi.org/10.1016/j.ymssp.2011.11.016
  4. An, Y.K., Lim, H.J., Kim, M.K., Yan, J.Y., Sohn, H. and Lee, C.G. (2014), "Application of local reference-free damage detection techniques to in-situ bridges", J. Struct. Eng.-ASCE, 140(3).
  5. Arslan, M.H. and Korkmax, H.H. (2007), "What is to be learned from damage and failure of reinforced concrete structures during recent earthquakes in Turkey?", Eng. Fail. Anal., 14(1), 1-22. https://doi.org/10.1016/j.engfailanal.2006.01.003
  6. Arun, N. and Subramaniam, K.V.L. (2016), "Experimental evaluation of load-induced damage in concrete from distributed microcracks to localized cracking on electro-mechanical impedance response of bonded PZT", Constr. Build. Mater., 105, 536-544. https://doi.org/10.1016/j.conbuildmat.2015.12.148
  7. Azhari, F. and Banthia, N. (2012), "Cement-based sensors with carbon fibers and carbon nanotubes for piezoresistive sensing", Cement Concrete Comp., 34(7), 866-873. https://doi.org/10.1016/j.cemconcomp.2012.04.007
  8. Bae, B.I., Chung, J.H., Choi, H.K., Jung, H.S. and Choi, C.S. (2018), "Experimental study on the cyclic behavior of steel fiber reinforced high strength concrete columns and evaluation of shear strength", Eng. Struct., 157, 250-267. https://doi.org/10.1016/j.engstruct.2017.11.072
  9. Baoguo, H., Kun, Z., Xun, Y., Eil, K. and Jinping, O. (2012), "Electrical characteristics and pressure-sensitive response measurements of carboxyl MWNT/cement composites", Cement Concrete Comp., 34(6), 794-800. https://doi.org/10.1016/j.cemconcomp.2012.02.012
  10. Chalioris, C.E., Karayannis, C.G., Angeli, G.M., Papadopoulos, N.A., Favvata, M.J. and Providakis, C.P. (2016), "Applications of smart piezoelectric materials in a wireless admittance monitoring system (WiAMS) to structures-tests in RC elements", Case Studies in Constr. Mater., 5, 1-18. https://doi.org/10.1016/j.cscm.2016.03.003
  11. Chalioris, C.E., Papadopoulos, N.A., Angeli, G.M., Karayannis, C.G., Liolios, A.A. and Providakis, C.P. (2015), "Damage evaluation in shear-critical reinforced concrete beam using piezoelectric transducers as smart aggregates", Open Eng., 5(1), 373-384.
  12. Cheng, C.C., Cheng, T.M. and Chiang, H.H. (2008), "Defect detection of concrete structures using both infrared thermography and elastic waves", Autom. Constr., 18(1), 87-92. https://doi.org/10.1016/j.autcon.2008.05.004
  13. Hou, T.C. and Lynch, J.P. (2005), "Conductivity-based strain monitoring and damage characterization of fiber reinforced cementitious structural components", Proceedings of the SPIE 12th Annual International Symposium on Smart Structures and Materials, California, USA, May
  14. Jahanshahi, M.R., Masri, S.F., Padgett, C.W. and Sukhatme, G.S. (2013), "An innovative methodology for detection and quantification of cracks through incorporation of depth perception", Machine Vision Appl., 24(2), 227-241. https://doi.org/10.1007/s00138-011-0394-0
  15. Jianming, G., Wei, S. and Keiji, M. (1997), "Mechanical properties of steel fiber-reinforced, high-strength, lightweight concrete", Cement Concrete Comp., 19(4), 307-313. https://doi.org/10.1016/S0958-9465(97)00023-1
  16. Jingyao, C. and Chung, D.D.L. (2004), "Electric polarization and depolarization in cement-based materials, studied by apparent electrical resistance measurement", Cement Concrete Res., 34(3), 481-485. https://doi.org/10.1016/j.cemconres.2003.09.003
  17. Karayannis, C.G., Voutetaki, M.E., Chalioris, C.E., Providakis, C.P. and Angeli, G.M. (2015), "Detection of flexural damage stages for RC beams using Piezoelectric sensors", Smart Struct. Syst., 15(4), 997-1018. https://doi.org/10.12989/sss.2015.15.4.997
  18. Kazuro, K., Hideaki, M., Isamu, O., Makoto, K., Keiichi, N., Yuichi, M. and Fumio, M. (2005), "Acoustic emission monitoring of a reinforced concrete structure by applying new fiber-optic sensors", Smart Mater. Struct., 14(3), 52-59.
  19. Konsta-Gdoutos, M.S. and Aza, C.A. (2014), "Self sensing carbon nanotube (CNT) and nanofiber (CNF) cementitious composites for real time damage assessment in smart structures", Cement Concrete Comp., 53, 162-169. https://doi.org/10.1016/j.cemconcomp.2014.07.003
  20. Lecompte, D., Vantomme, J. and Sol, H. (2006), "Crack detection in a concrete beam using two different camera techniques", Struct. Health Monit., 5(1), 59-68. https://doi.org/10.1177/1475921706057982
  21. Luo, J.L., Duan, Z.D., Zhao, T.J. and Li, Q.Y. (2011), "Selfsensing property of cementitious nanocomposites hybrid with nanophase carbon nanotube and carbon black", Adv. Mater. Res., 143-144, 644-647.
  22. Neild, S.A., Williams, M.S. and McFadden, P.D. (2005), "Development of a vibrating wire strain gauge for measuring small strains in concrete beams", Strain, 41(1), 3-9. https://doi.org/10.1111/j.1475-1305.2004.00163.x
  23. Providakis, C. and Liarakos, E. (2011), "T-WiEYE: An early-age concrete strength development monitoring and miniaturized wireless impedance sensing system", Procedia Eng., 10, 484-489. https://doi.org/10.1016/j.proeng.2011.04.082
  24. Qiao, G., Guo, B., Li, Z., Ou, J. and He, Z. (2017), "Corrosion behavior of a steel bar embedded in a cement-based conductive composite", 134, 388-396. https://doi.org/10.1016/j.conbuildmat.2016.12.087
  25. Robin, W. (2013), Failures in Concrete Structures Case Studies in Reinforced and Prestressed Concrete, CRC Press, Miami, FL, USA.
  26. Simon, A., Courtois, A., Clauzon, T., Coustabeau, E. and Vinit, S. (2015), "Long-term measurement of strain in concrete: durability and accuracy of embedded vibrating wire strain gauges", Smart Monitoring, Assessment and Rehabilitation of Civil Structures, Antalya, Turkey, September.
  27. Suraj, N.K. and Shruti, R.G. (2016), "PZT based smart aggregate for unified health monitoring of RC structures", Open J. Civil Eng., 6(1), 42-49. https://doi.org/10.4236/ojce.2016.61005
  28. Teomete, E. (2015), "Measurement of crack length sensitivity and strain gage factor of carbon fiber reinforced cement matrix composites", Measurement, 74, 21-30. https://doi.org/10.1016/j.measurement.2015.07.021
  29. Vaidya, S. and Allouche, E.N. (2011), "Experimental evaluation of electrical conductivity of carbon fiber reinforced fly-ash based geopolymer", Smart Struct. Syst., 7(1), 27-40. https://doi.org/10.12989/sss.2011.7.1.027
  30. Verstrynge, E., Pfeiffer, H. and Wevers, M. (2014), "A novel technique for acoustic emission monitoring in civil structures with global fiber optic sensors", Smart Mater. Struct., 23(6), 1-9.
  31. Wang, D., Song, H. and Zhu, H. (2013), "Numerical and experimental studies on damage detection of a concrete beam based on PZT admittance and correlation coefficient", Constr. Build. Mater., 49, 564-574. https://doi.org/10.1016/j.conbuildmat.2013.08.074
  32. Xu, D., Cheng, X., Huang, S. and Jiang, M. (2010), "Identifying technology for structural damage based on the impedance analysis of piezoelectric sensor", Constr. Build. Mater., 24(12), 2522-2527. https://doi.org/10.1016/j.conbuildmat.2010.06.004
  33. Xuli, F., Erming, M., Chung, D.D.L. and Anderson, W.A. (1997), "Self-monitoring in carbon fiber reinforced mortar by reactance measurement", Cement Concrete Res., 27(6), 845-852. https://doi.org/10.1016/S0008-8846(97)83277-2
  34. Yan, S., Ma, H., Li, P., Song, G. and Wu, J. (2017), "Development and application of a structural health monitoring system based on wireless smart aggregates", Sensors, 17(7), 1641.
  35. Yang, J.Y., Hwang, S.K., An, Y.K., Lee, K.H. and Sohn, H. (2016), "Multi-spot laser lock-in thermography for real-time imaging of cracks in semiconductor chips during a manufacturing process", J. Mater. Process. Technol., 229, 94-101. https://doi.org/10.1016/j.jmatprotec.2015.09.020
  36. Yanowen, Y., Yugang, H. and Yong, L. (2008), "Sensitivity of PZT impedance sensors for damage detection of concrete structures", Sensors, 8(1), 327-346. https://doi.org/10.3390/s8010327
  37. Yoo, D.Y., Yoon, Y.S. and Banthia, N. (2015), "Flexural response of steel-fiber-reinforced concrete beams: Effects of strength, fiber content, and strain-rate", Cement Concrete Comp., 64, 84-92. https://doi.org/10.1016/j.cemconcomp.2015.10.001

피인용 문헌

  1. Multi-Channel Electrical Impedance-Based Crack Localization of Fiber-Reinforced Cementitious Composites under Bending Conditions vol.8, pp.12, 2018, https://doi.org/10.3390/app8122582
  2. Cement-based materials for self-sensing and structural damage advance warning alert by electrical resistivity vol.46, pp.p1, 2018, https://doi.org/10.1016/j.matpr.2020.11.381
  3. Toward Structural Health Monitoring of Civil Structures Based on Self-Sensing Concrete Nanocomposites: A Validation in a Reinforced-Concrete Beam vol.15, pp.1, 2021, https://doi.org/10.1186/s40069-020-00451-8